When I went to my best friend's house with my boyfriend, I was introduced to her boyfriend and we were neighbors. When my best friend's boyfriend touched my thighs and made me hold his dick, it was erect, and it was bigger and harder than my boyfriend's. As I couldn't stop my heart from pounding, my best friend started to seduce my boyfriend and flirt with him, and we swapped couples. I took a shower with my best friend's boyfriend and got excited by sucking his dick that didn't fit in my mouth. In bed, in front of my boyfriend and best friend, I couldn't stop getting excited as his dick, which was bigger than my boyfriend's, entered me.