START-563 — I Was Used As A Sex Toy To Satisfy My Husband's Pent-Up Sexual Desires. His Incredibly Powerful Erection Made Me Feel More Pleasure Than When I Was With My Husband... Nagisa Koisei

I've been married for a year to my much older husband. We're living with his son and his wife from his previous marriage. The house is spacious, and we have our own privacy, so I thought I was happy... but! My stepson, who is experiencing a sexless marriage, keeps pressuring me to satisfy his sexual desires, regardless of time or place. I can't resist his thick, hard penis, which is so different from my husband's, and before I knew it, I was starting to crave it myself.