Yes

You hear faint muffled noises from inside your bedroom, but you open the door without hesitation.

Looking inside, you see your wife on her back, naked, legs spread invitingly. Positioned between her legs is an equally naked Joel, his cock positioned near her entrance. He's got a thick, 8-inch member, which seems like it was a small thrust away from entering your wife.

Jessica looks over at you, her expression annoyed for a moment, but she quickly puts on a smile.

"What do you need Steve? Me and Joel are busy right now. You don't want to interrupt us."

You furrow your forehead, trying to remember why you don't want to stop your wife and your brother from having sex in your bed. Nothing comes up, but you're certain you don't want to get in their way.

"I just needed to get some sleepwear honey, I'll be out of your hair in a moment."

Jessica smiles. "Great, but on second thought, you don't need to leave right away. Joel's really doing you a favor by filling in for you tonight, so the least you can do is stick around and thank him. Feel grateful you have such an accommodating brother."

You feel a surge of gratefulness towards Joel. You're really lucky to have such a great brother. Voice sincere, you tell him so.

"Thanks Joel, I couldn't ask for a better brother."

Joel seems distracted, barely giving you a word of acknowledgement before thrusting his hips forwards and entering Jessica. You realize you've gotten incredibly hard in your pants, and aren't sure if Jessica wants you to stick around after thanking Joel, or if you should get your sleeping clothes and leave.