The pleasure comes from the rubbing of the prostrate gland. A small penis does not reach it, and that pleasure is lost. All you have is the motion of repeating penetrations without the sensation from the prostrate which can cause an orgasm without being touched. Also it is more difficult in the heat of sex to maintain safe entrance without jabbing about with a small penis. Sorry for all the details, but you asked.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
Date: 2008-06-05 10:47 pm (UTC)