So he whips out his cock and cracks her open a fresh one with it.

Impressed, she offers him a tip, to which he waves her off and replies, “I’ve got all the tip I need.”

Clearly turned on, she points between her tits and says, “Let me hold that for you.” And then they start fucking as the wedding party looks on in horror.

Except Dave. He’s whacking it in the corner, cheering them on. Dave is a groomsman.

The bride screams as she storms out in anger, slamming the bouquet to the ground, “Sis ruins everything!”