There was always something a bit nervy about touching someone so intimately the first time, right on the boundary of exciting though, especially someone like him, someone she thought maybe might get her in ways she didn't quite get herself? Or maybe that was expecting too much- Lyra found it hard to tell, her expectations of people, or relationships with people, never gelled with reality as much as she liked. A lot of too-muchs and not-enoughs.
Definitely way too deep of a thought when pulling down someone's jeans and underpants though, and the feeling of his naked dick in her hand did chase those thoughts away, especially with his reaction. So eager! Lyra got the impression that he maybe hadn't done this for a while, but she liked his eagerness. She should take off her bra, really give him something to be eager about, but... her hand was busy, now, and bra hooks were not something she'd managed to get the hang of one handed.