Convincing my stepsister to try anal sex for the first time

A guy was at his girlfriend's house, and her stepsister decided to join them. He always wanted to try anal sex with the blonde girl, but she never seemed interested. When he came back to the house, he decided to give it another shot. He started teasing her by licking her pussy and asshole, and then he asked her to try anal. At first, she was hesitant, but he managed to convince her. He took his cock out and lubed it up, before pushing it into her tight ass. She winced in pain, but he kept going. After a few thrusts, she got used to it and even started enjoying it. He fucked her hard and deep, and then he made her suck his cock while he continued to fuck her ass. Finally, he came inside her mouth and on her ass.