sister fister


the act of fisting your sister. commonly refered to as incest.
yo this kid named francis is a f-cking sister fister.
a brother or even a sister that likes to casualy fist their sister up the v-g-n- or even the -rs- hole. most of the time resulting in a very sore v-g-n-/-n-s, and if caught resulting in a sentence of 10 years in jouvey.
(here is a role-play of a sister fister and his sister)
kirsten after a long sleep
kirsten: o hi there aaron i didnt see you over there in that dark corner.
aaron: you dont need to see me, you just need to feel me
aaron and kirsten both grin and kirsten turns around
anyone who has shoved their hand into a friend’s sister’s c-nt
1) wow i pulled the sister fister on steph
2) i pulled the sister fister on blakes sister
strictly, one who indulges in a particular form of incest, using only their hand (see fister. often used as a term of contempt, and shortened to “sissy” on account of their unadventurousness.

see also brotherf-cker.
your brother’s such a sisterfister, you know.
a person who fists peoples sister
amr fisted my dog
a b-tch you can stick your fist inside of her p-ssy, no lube necessary. the word sister referring to any random female.
the girl i met last night i was down to f-ck, until i realized it was sister fister.
nun hand f-cker
i fisted the sister during confession

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