Mom said you're not allowed to have a girlfriend? Well good thing I'm your big sister (Patreon)

[Script Fill] [Bro/Sis] ["Bad influence" big sis who loves her lil bro] [revenge sex] [Ler's make Mom mad] [Kissing] [Dirty Talk] [Blowjob] [L-bombs] [Cum Swallowing] [Facesitting] [Cunnilingus] [Riding] [Creampie] [Caught at the end but keep going] mentions of [anal sex] 

*After catching you with a girl in your room, your strict Mom has forbidden you from doing, well, pretty much anything with other women. Lucky for you, while she's away, your loving big sis has just come over and thinks Mom's punishment for you is unfair and cruel. One thing leads to another before your big sis offers a chance to get back at Mom and really make her mad- after all, who needs a gf when you have a big sister?*

Thank you u/WingsOfASavior for the script~ 

Photo from Pinterest <3