With the girls around, he somewhat eavesdropped on their conversation, with his eyes focused on their breasts. One girl in particular had this giant pair that he would've loved to go over and play with, but he respected them for now, keeping to himself.
He was surprised, though, when the girl wearing diapers left the group and walked towards him. "Hey Jeff!" "Uhh, Hey." He stared at her mostly flat chest for a moment, before she walked over, and sat on his lap. "So what's up?"
He had to calm his thoughts, trying to calm the erection before responding. "Uhh, nothing much. You?" She giggled, turning around to face him. "Well, me and the girls had a fun talk! Beyond that though, nothing much either." She wiggled her crotch a bit, getting more comfortable. He would've been surprised if she couldn't feel how hard he was, even through her diaper.
The two sat there, and chat for a bit, the girl pushing her diapered bottom against his erect penis. But Jeff's main question was, Why did she choose him? Was it because of him being the only male currently here, or was there something else going on. He genuinely wanted to know.