Is This Bikini Small Enough Step Dad

Trying to make some coffee early in the morning when my Step Daughter Bess calls me into the living room. She is wearing a bikini and ask if it shows enough. I say her Mother should be helping her but her Mom is on a Business trip. The bikini looks fine but Bess wants to try on a different set. Before I can walk away, she strips out of the top and bottom and slides on another bikini. Bess notices my morning boner and takes care of it like a Good Step Daughter. Before I know what is happening, I am fucking my Thicc Step Daughter on the couch and dumping my load inside of her. Should have checked if she was on birth control first...Good thing she is!!!