Sexual Addiction reduces life span, intelligence, opulence and personal beauty

Srila Prabhupada's Purport to 4.27.21

The great sage Nārada Muni was a naiṣṭhika-brahmacārī — that is, he never had sex life. He was consequently an ever-green youth. Old age, jarā, could not attack him. The invalidity of old age can overcome an ordinary man, but Nārada Muni was different. Taking Nārada Muni to be an ordinary man, the daughter of Time confronted him with her lusty desire. It requires great strength to resist a woman’s attraction. It is difficult for old men, and what to speak of young. Those who live as brahmacārīs must follow in the footsteps of the great sage Nārada Muni, who never accepted the proposals of Jarā. Those who are too much sexually addicted become victims of jarā, and very soon their life span is shortened. Without utilizing the human form of life for Kṛṣṇa consciousness, the victims ofjarā die very soon in this world.

Srila Prabhupada's purport to 4.28.1

When a man is young, he does not care for old age but enjoys sex to the best of his satisfaction, not knowing that at the end of life his sexual indulgence will bring on various diseases, which so much disturb the body that one will pray for immediate death. The more one enjoys sex during youth, the more he suffers in old age.

SB 4.28.6: 

When King Purañjana was embraced by Kālakanyā, he gradually lost all his beauty. Having been too much addicted to sex, he became very poor in intelligence and lost all his opulence. Being bereft of all possessions, he was conquered forcibly by the Gandharvas and the Yavanas.

Purport: 

When a person is attacked by the invalidity of old age and is still addicted to sense gratification, he gradually loses all his personal beauty, intelligence and good possessions. He thus cannot resist the forceful attack of the daughter of Time.

Systematic Grhastha Life as enjoined in the Vedas is better than irresponsible sinful life

From Srila Prabhupada's purport to SB 4.27.1

A sinful life can be counteracted by various processes of religion such as yajña, vrata and dāna — that is, the performance of sacrifices, the taking of a vow for some religious ritual, and the giving of charity. In this way one may become free from the reactions of sinful life and at the same time awaken his original Kṛṣṇa consciousness. By coming home, taking his bath, eating nice foodstuffs, getting refreshed and searching out his wife, King Purañjana came to his good consciousness in his family life.
Benefits of Systematic Family Life as enjoined in the Vedas
 In other words, a systematic family life as enjoined in the Vedas is better than an irresponsible sinful life. If a husband and wife combine together in Kṛṣṇa consciousness and live together peacefully, that is very nice. However, if a husband becomes too much attracted by his wife and forgets his duty in life, the implications of materialistic life will again resume. Śrīla Rūpa Gosvāmī has therefore recommended, anāsaktasya viṣayān (Bhakti-rasāmṛta-sindhu 1.2.255). Without being attached by sex, the husband and wife may live together for the advancement of spiritual life. The husband should engage in devotional service, and the wife should be faithful and religious according to the Vedic injunctions. Such a combination is very good. 

Sex Desire spoils spiritual advancement of the family
However, if the husband becomes too much attracted to the wife due to sex, the position becomes very dangerous. Women in general are very much sexually inclined. Indeed, it is said that a woman’s sex desire is nine times stronger than a man’s. It is therefore a man’s duty to keep a woman under his control by satisfying her, giving her ornaments, nice food and clothes, and engaging her in religious activities. Of course, a woman should have a few children and in this way not be disturbing to the man. Unfortunately, if the man becomes attracted to the woman simply for sex enjoyment, then family life becomes abominable.

The great politician Cāṇakya Paṇḍita has said, bhāryā rūpavatī śatruḥ: a beautiful wife is an enemy. Of course every woman in the eyes of her husband is very beautiful. Others may see her as not very beautiful, but the husband, being very much attracted to her, sees her always as very beautiful. If the husband sees the wife as very beautiful, it is to be assumed that he is too much attracted to her. This attraction is the attraction of sex. The whole world is captivated by the two modes of material nature rajo-guṇa and tamo-guṇa, passion and ignorance. 

A Husband's Role if the wife is not properly situated
Generally women are very much passionate and are less intelligent; therefore somehow or other a man should not be under the control of their passion and ignorance. By performing bhakti-yoga, or devotional service, a man can be raised to the platform of goodness. If a husband situated in the mode of goodness can control his wife, who is in passion and ignorance, the woman is benefited. Forgetting her natural inclination for passion and ignorance, the woman becomes obedient and faithful to her husband, who is situated in goodness. Such a life becomes very welcome. The intelligence of the man and woman may then work very nicely together, and they can make a progressive march toward spiritual realization. Otherwise, the husband, coming under the control of the wife, sacrifices his quality of goodness and becomes subservient to the qualities of passion and ignorance. In this way the whole situation becomes polluted.

The conclusion is that a household life is better than a sinful life devoid of responsibility, but if in the household life the husband becomes subordinate to the wife, involvement in materialistic life again becomes prominent. In this way a man’s material bondage becomes enhanced. Because of this, according to the Vedic system, after a certain age a man is recommended to abandon his family life for the stages of vānaprastha and sannyāsa.

Captivation due to illicit sex( husband or wife)

Also see 

Systematic Grhastha Life as enjoined in the Vedas is better than irresponsible sinful life

From Srila Prabhupada's Purport to 4.26.26:

Both man and woman desire one another; that is the basic principle of material existence. Women in general always keep themselves beautiful so that they can be attractive to their lusty husbands. When a lusty husband comes before his wife, the wife takes advantage of his aggressive activities and enjoys life. Generally when a woman is attacked by a man — whether her husband or some other man — she enjoys the attack, being too lusty. In other words, when one’s intelligence is properly utilized, both the intellect and the intelligent person enjoy one another with great satisfaction. As stated in Śrīmad-Bhāgavatam (7.9.45):

yan maithunādi-gṛhamedhi-sukhaṁ hi tucchaṁ
 kaṇḍūyanena karayor iva duḥkha-duḥkham

The actual happiness of the karmīs is sex life. They work very hard outside the home, and to satiate themselves after their hard labor, they come home to enjoy sex life. King Purañjana went to the forest to hunt, and after his hard labor he returned home to enjoy sex life. If a man lives outside the home and spends a week in a city or somewhere else, at the end of the week he becomes very anxious to return home and enjoy sex with his wife. This is confirmed in Śrīmad-Bhāgavatam: yan maithunādi-gṛhamedhi-sukhaṁ hi tuccham. Karmīs work very hard simply to enjoy sex. Modern human society has improved the materialistic way of life simply by inducing unrestricted sex life in many different ways. This is most prominently visible in the Western world.

From 4.26.23:

An effeminate husband, simply being attracted by the external beauty of his wife, tries to become her most obedient servant. Śrīpāda Śaṅkarācārya has therefore advised that we not become attracted by a lump of flesh and blood. The story is told that at one time a man, very much attracted to a beautiful woman, wooed the woman in such a way that she devised a plan to show him the ingredients of her beauty. The woman made a date to see him, and before seeing him she took a purgative, and that whole day and night she simply passed stool, and she preserved that stool in a pot. The next night, when the man came to see her, she appeared very ugly and emaciated. When the man inquired from her about the woman with whom he had an engagement, she replied, “I am that very woman.” The man refused to believe her, not knowing that she had lost all her beauty due to the violent purgative that caused her to pass stool day and night. When the man began to argue with her, the woman said that she was not looking beautiful because she was separated from the ingredients of her beauty. When the man asked how she could be so separated, the woman said, “Come on, and I will show you.” She then showed him the pot filled with liquid stool and vomit. Thus the man became aware that a beautiful woman is simply a lump of matter composed of blood, stool, urine and similar other disgusting ingredients. This is the actual fact, but in a state of illusion, man becomes attracted by illusory beauty and becomes a victim of māyā.

From 4.25.62:

1. Just to satisfy his desires, the King got the Queen, and thus he became cheated by material existence. Although he was not willing to do so, he remained a pet animal under the control of material intelligence.
2.  Just as a pet monkey dances according to the desires of its master, the King danced according to the desires of the Queen. In Śrīmad-Bhāgavatam (5.5.2) it is said, mahat-sevāṁ dvāram āhur vimukteḥ: if one associates with a saintly person, a devotee, one’s path of liberation becomes clear.
3.  But if one associates with a woman or with a person who is too much addicted to a woman, his path of bondage becomes completely clear.
4. On the whole, for spiritual advancement one must give up the company of women. This is what is meant by the order of sannyāsa, the renounced order.
5. Before taking sannyāsa, or completely renouncing the material world, one has to practice avoiding illicit sex. Sex life, licit or illicit, is practically the same, but through illicit sex one becomes more and more captivated.
6. By regulating one’s sex life there is a chance that one may eventually be able to renounce sex or renounce the association of women. If this can be done, advancement in spiritual life comes very easily.

How one becomes captivated by the association of one’s dear wife is explained in this chapter by Nārada Muni.

1.  Attraction for one’s wife means attraction for the material qualities.
2. One who is attracted by the material quality of darkness is in the lowest stage of life, whereas one who is attracted by the material quality of goodness is in a better position. 
3. Sometimes we see that when a person is on the platform of material goodness, he is attracted more or less by the cultivation of knowledge.
4. This is, of course, a better position, for knowledge gives one the preference to accept devotional service. Unless one comes to the platform of knowledge, the brahma-bhūta stage, one cannot advance in devotional service. 

The Distress of a husbandless women

SB 4.25.42

O mighty-armed, who in this world will not be attracted by your arms, which are just like the bodies of serpents? Actually you relieve the distress of husbandless women like us by your attractive smile and your aggressive mercy. We think that you are traveling on the surface of the earth just to benefit us only.

Purport: 

When a husbandless woman is attacked by an aggressive man, she takes his action to be mercy. A woman is generally very much attracted by a man’s long arms. A serpent’s body is round, and it becomes narrower and thinner at the end. The beautiful arms of a man appear to a woman just like serpents, and she very much desires to be embraced by such arms.

The word anātha-vargā is very significant in this verse. Nātha means “husband,” and a means “without.” A young woman who has no husband is called anātha, meaning “one who is not protected.” As soon as a woman attains the age of puberty, she immediately becomes very much agitated by sexual desire. It is therefore the duty of the father to get his daughter married before she attains puberty. Otherwise she will be very much mortified by not having a husband. Anyone who satisfies her desire for sex at that age becomes a great object of satisfaction. It is a psychological fact that when a woman at the age of puberty meets a man and the man satisfies her sexually, she will love that man for the rest of her life, regardless who he is. Thus so-called love within this material world is nothing but sexual satisfaction.

The Lord's Darshan makes one aloof from sex attraction and one desires to see nothing else but the Lord

From the purport to SB 3.28.32:

A yogī should similarly meditate on the most benevolent smile of Lord Śrī Hari, a smile which, for all those who bow to Him, dries away the ocean of tears caused by intense grief. The yogī should also meditate on the Lord’s arched eyebrows, which are manifested by His internal potency in order to charm the sex-god for the good of the sages.

Purport:

It is stated in this verse that the charming eyebrows of the Lord are so fascinating that they cause one to forget the charms of sense attraction. The conditioned souls are shackled to material existence because they are captivated by the charms of sense gratification, especially sex life. The sex-god is called Makara-dhvaja. The charming brows of the Supreme Personality of Godhead protect the sages and devotees from being charmed by material lust and sex attraction. Yāmunācārya, a great ācārya, said that ever since he had seen the charming pastimes of the Lord, the charms of sex life had become abominable for him, and the mere thought of sex enjoyment would cause him to spit and turn his face. Thus if anyone wants to be aloof from sex attraction, he must see the charming smile and fascinating eyebrows of the Supreme Personality of Godhead.

3.28.33
With devotion steeped in love and affection, the yogī should meditate within the core of his heart upon the laughter of Lord Viṣṇu. The laughter of Viṣṇu is so captivating that it can be easily meditated upon. When the Supreme Lord is laughing, one can see His small teeth, which resemble jasmine buds rendered rosy by the splendor of His lips. Once devoting his mind to this, the yogī should no longer desire to see anything else.

Purport:
If the yogī is able to place the beautiful face of the Lord in the core of his heart, he will be completely satisfied. In other words, when one is absorbed in seeing the beauty of the Lord within himself, the material attraction can no longer disturb him.

Sex Desire binds the conditioned soul in material existence

Copied from HDG Srila Prabhupada's purport to SB 2.1.12:

How Sex Desire binds?

• The grossest type of anartha which binds the conditioned soul in material existence is sex desire, and this sex desire gradually develops in the union of the male and female.
•  When the male and female are united, the sex desire is further aggravated by the accumulation of buildings, children, friends, relatives and wealth.When all these are acquired, the conditioned soul becomes overwhelmed by such entanglements, and the false sense of egoism, or the sense of “myself” and “mine,” becomes prominent, and the sex desire expands to various political, social, altruistic, philanthropic and many other unwanted engagements, resembling the foam of the sea waves, which becomes very prominent at one time and at the next moment vanishes as quickly as a cloud in the sky. 
• The conditioned soul is encircled by such products, as well as products of sex desire, and therefore bhakti-yoga leads to gradual evaporation of the sex desire, which is summarized in three headings, namely profit, adoration and distinction. 

How Bhakti Yoga helps one overcome sex desire?

• All conditioned souls are mad after these different forms of sex desire, and one shall see for himself how much he has been freed from such material hankerings based primarily on the sex desire. As a person feels his hunger satisfied after eating each morsel of foodstuff, he must similarly be able to see the degree to which he has been freed from sex desire. 
• The sex desire is diminished along with its various forms by the process of bhakti-yoga because bhakti-yoga automatically, by the grace of the Lord, effectively results in knowledge and renunciation, even if the devotee is not materially very well educated. 
• Knowledge means knowing things as they are, and if by deliberation it is found that there are things which are at all unnecessary, naturally the person who has acquired knowledge leaves aside such unwanted things.
•  When the conditioned soul finds by culture of knowledge that material necessities are unwanted things, he becomes detached from such unwanted things. This stage of knowledge is called vairāgya, or detachment from unwanted things. 
• So by the gradual process of devotional service under the guidance of a proper spiritual master, and following the principles of the Bhāgavatam, one must be able at least to control the gross sex desire before one accepts the renounced order of life factually.
• So purification means getting free gradually from sex desire, and this is attained by meditation on the person of the Lord as described herein, beginning from the feet. One should not try to go upwards artificially without seeing for himself how much he has been released from the sex desire. The smiling face of the Lord is the Tenth Canto of Śrīmad-Bhāgavatam, and there are many upstarts who at once try to begin with the Tenth Canto, and especially with the five chapters which delineate the rāsa-līlā of the Lord.