I honestly beleive that anything which is pleasurable to you or your partner(s) is okay. Just for me, in my case I take it even a step further, I be...lieve that as a sensuous woman my job, or challenge if you will, is to please my sexual partner(s) whether or not I get pleasure from whatever it is, therefore I rarely, if ever, refuse to do whatever my partner(s) want. Thats not too hard for me because I consider almost anything sexual to be somewhat pleasurable. My first bondage experience . .. unh ...I"She smiled, still staring at my flaccid cock, "It's okay, Robby. I think it's kinda hot that you use your little sister's underwear to get off on.." You do?"She sat down on the edge of the bed. "Yeah, I do. Why don't you finish?" Cuz you're watching. I can't ... just pick up where I left off."She reached for my limp dick. "Then let me help." What! Why the hell are you home, wasn't there a football game tonight?" I said as she gripped the soft lace panties and began stroking."I guess. I eagerly accepted it and I allowed my tongue to explore the hardening nipple. I traced circles around the nipple with my tongue and nibbled on it slightly with my lips. I playfully put the nipple between my teeth and gently continued my feast. I heard a slight gasp of eroticism and my dick hardened even more at the sound. As I continued to work on the breasts that had been provided, I felt my pants being removed to my ankles. Two hands were now caressing my dick in a motion not dissimilar to. It didn't seem like either of us were going to surrender this oral battle. It just got more and more intense the longer we went, until finally I said, "I've got to cum soon." There was no way she was going to let me off that easy. She jumped up, spun around, and said, "Don't you dare," as she lower herself down, guiding my saliva-soaked cock towards her wet cunt. When she had eased it in half way she took her hand off my cock to let gravity do the rest. In a couple of seconds I was balls deep.