Friend's first creampie

This was told to me by a friend., Jen and rusty had an on again off again relation ship and pone night he dropped in
Dave had just left and she gave him one last fuck before breaking up. Rusty lit up a joint and they went on the back porch to smoke it. After several passes around they were both feeling high. She had been rubbing his cock and he had his hand in her blouse and was rubbing her breasts. She was horny and he slid down on the deck and lifted her dress finding no panties and went down on her. Rusty said he assumed she was just very moist from excitement. She tried to push him away but wasn't strong in her convictions and after he ate her for several minutes, she pulled him up and said I am sorry but Dave was just here and I tried to push you away so you didn't eat his cum but it turned me on. Rusty said he was so turned on he went back down and he came after digging his tongue deep. She realized how turned on he was and said I liked that. can we do it again?
Rusty was engrossed in this behavior and they did it with several friends including his and her younger brothers.