You step in.

Making a quick decision, you push the door open and step into the room. Tony Carrollton stops in mid-thrust, his face surprised at your sudden appearance. Millie doesn't notice you at once, her eyes closed and her neck arched in her excited frenzy.

"Don't stop! Oh Fuck Don't Stop! Not Now!" she moans, looking back over her shoulder at Julia's father, squirming back to encourage him.

"Coach Watts." Tony Carrollton says, recovering his composure and nodding at you. Startled, Millie turns back to look at you, giving a squeal of surprise.

"Sorry to interrupt," you say with a smile.

"Oh My God!" Millie squeaks, still bent over the pommel horse. "Oh My God! Coach Watts! It's...it's not...not what....it looks like...." Tony Carrollton shakes his head, rolling his eyes in irony at her protest, still holding her hips and likely still filling her cunt.

"Oh I see," you chuckle. "You're not really bent over the pommel horse getting railed by Julia's father?" She blushes furiously, her mouth moving as it searches for words that don't come. Tony laughs, shaking his head in amusement.

"Millie is an old friend of the family, Coach Watts. She and I often enjoy each other's company. Don't we dear?"

"Oh My God! This is so embarrassing! Coach Watts, don't....please don't tell....please...Julia...she'd be so mad at me!"

"Yes, that would be more than inconvenient," Tony nods. "Perhaps we can reach an understanding? Between gentlemen so to speak? Something of mutual benefit?" He nods down at Millie, still bent over the horse and still squirming, then looks at you with a raised eyebrow, while slowly thrusting into her.

His meaning couldn't be clearer, and although you've already sampled the ripe teen, you feel your cock twitch at the thought of another round.