Are there any women who would break up with a guy if he was "blessed" with a small penis?

Difficult 2 Answer: Size of penis is not a detriment to good sexual satisfaction to either partner. Some women may prefer a "smaller" penis as some may prefer a "larger" penis. If you and your partner are dissatisfied with your sexual intimacy/relationship over the size of the penis, perhaps you need some counselling, new technique or maybe the relationship is just not going to work out.

Probably: Some women will break up with a man for any excuse.

Maturity: Though we all have specifics in our sexual desires; and even though penis size is the source of much joking and anguish; in a good, mature relationship, physicality and its quirks takes a back set to compassion, character, depth. As drs have noted, sexual satisfaction for both men and women need not be related to obvious physical traits--intimate communication is the most arousing thing there is.