Yes. It is soooooooooo exciting to have my ass cheeks spread open wide and know my partner's eyes are examing my brown puckered hole.... making ready to lick it, probe it with his fingers and tongue - all as a prelude to invading it with his hard, warm cock.
So good you had sister helping you out. Sucking cock is addicting. My sister and several of our cousins are bisexual ..from our experiences growing up and into adulthood. I identify more as homosexual but still open minded about being bisexual.
My older sister listened to me calmly when I reluctantly told her I thought I might be gay. She surprised me by actually encouraging me to get with another guy and give gay sex a try. After a few days she showed me a few photos of gay guys at college who were her friends - telling me she could discretely set me up to meet with them to give my gay urges a try. The smallest of these gay friends was kinda femme looking and I reluctantly told her he was cute and sexy. She said he had a small cute ass and endorsed him (Ray) as a good choice for me to give gaay sex a try. I did. I met up with ray in his college dorm room along with my sister. After a while she left and left us alone. Ray soon was sucking my cock and I was soon sucking him as enthusiastically as he sucked me. He looked me in rimming and my sister was right, Ray had a firm tight little gay ass that I licked and probed with my tongue. I shocked myself by doing something so "dirty" but I feel in love with tight boy ass.