My wife is pregnant...and recently gave birth to our long-awaited first child. My wife's sister came to our house to celebrate her baby's birth, but the defenseless panty shots and chest shots of her loving the baby were too much for me, who hadn't had sex with my wife for over a year and a half. The stimulation is so strong that I can't help but get an erection! My sisters-in-law noticed my dick on the verge of exploding and gently touched my dick.