Jen obeyed and I felt her warm lips slide the rubbery head of my penis between them, sucking me in, then pushing her lips together and sliding it out to just the tip, then drawing my head back in. Jen's full lips drove me wild, and this teasing movement set my heart pumping frantically. I longed to make one, good shove and relieve the pressure she was building, but stood my ground and allowed her to play with me at her own pace.

Mom continued, "If you want, you can open your mouth a little and just rub the head back and forth along your lower lip."

Jen looked up...