SiN

/me raises her hand

i love it. but the situation/conditions need to be right.
which mostly means my butt needs to be cooperating

when done properly (lube + patience) it feels very good.
plus i love giving *that* to my bf. and he likes getting it

try her on top, i like to start that way personally.

another thing to try too if not done already is have you/her play with her clit whilst being assfucked.
it can help with keeping the sensations on the good side of intense

good luck.

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