Your stepsister Beth sucks you off

Beth's stepbrother catches her humping her pillow and threatens to tell stepmum and stepdad what she's been doing. Beth doesn't want him to do that so she does some bargaining to get him to promise not to tell. Her stepbrother gets her to undress, show him her pussy and suck his dick, none of which she's thrilled about. However, Beth accepts her fate and sucks his cock until he cums.