Start by getting someone she likes to kiss her slowly for 10-20 minutes, then deep french-kiss her for 2-3h.
It'll probably get her in the mood. I've seen slow-starters and sometimes they can go at it all night when started. She might need a stronger bond to really get going.
She might do better in softer scenes, softcore or solo.
Bring her to me. I'll help her.
