A smooth first anal

How can this beautiful slender teeny read a magazine in bed when her sex-addicted boyfriend is extremely horny and starts kissing and teasing her everywhere? She finally gives up and lets her passion take control spreading her legs to get fingered, licked and fucked good and taking cock in the ass for the first time ever. She never planned her first anal date, it just happened so smoothly it felt like she's been doing it for years.