Family Ties/Head to the back and check on the twins.
After telling Jacob there are snacks in the cabinet you head to the rear bedroom finding the door cracked open slightly, hearing the twins chatting back and forth. As you take a few steps closer you can hear Timmy mention your name. You move to the edge of the doorway and peer inside to see Jessie in nothing but her bikini, sitting on the edge of the bed with her arm intertwined with Timmy's, watching him play his game and continuing a line of questioning that started before you got there.
"Was she wearing a bra? Sometimes she doesn’t if we’re not going out." Jessie comments to Timmy, who doesn't even look up from his game when he responds.
"Yeah, but it was a really sheer material and I could see right down her shirt whenever she bent over. Her nipples where poking out and I think mom might have even caught me staring." Timmy says as he pauses his game and tosses it to the side.
Jessie gives a slight giggle and kisses her brother's cheek. "I bet she'd show you them if you asked." the little blonde bounces her heals against the bed and gives a smile before continuing. "I bet she'd have a heart attack is she knew you wanted to be in her bed instead of dad.”
Timmy nods his head slowly, a look of disappointment on his face, "I am just a little boy, how could I know what sex is, how could I want to do it with her?"
Jessie finishes the comment for him. "Cause' we have seen most of dad's porn and all you do is think about her when you jack off." She loosens her grip on his arm and kneels up beside him. "She would want you if she knew how big this thing can get." She whispers, reaching between Timmy's legs and grabbing the outline of his boy cock through his shorts, earning a grown from Timmy. "She doesn’t get it from dad much any more.., you know...”
Timmy cuts her words off but doesn’t stop her from jerking his cock through his shorts, his eye tightly closed as if he were imagining your body. "He's an idiot..., I'd fuck her every night if she'd let me." He says, opening his eyes to meet Jessie's gaze.
"I know Timmy." She responded as if she has heard all this before, not to surprising considering how close they obviously are. "But you can have me any time" Jessie concludes before taking him in a passionate kiss, far more mature then either one of them should be capable of. After making out briefly Jessie set his cock free and settles back down beside him, her arm once again draped within his.
Oh my God.., oh my God..., He wants to fuck me! He's not just peeking, he actually has been jerking off, thinking about fucking his mommy! You scream out in your head. The whole exchange has caused your hormones to go into overdrive, your nipples are rock hard, poking through your bikini top and your pussy is literally screaming for his cock to be imbedded in the womb it came from.
You could walk in and spend some time with both the twins.
Or you could tell Jessie about the snacks in the center of the RV, leaving you alone with Timmy to: