Fingering

Hey girls,

So my bf has been trying to finger me for awhile and it’s honestly amazing however he’s never able to make me finish because his wrist locks. It’s connected to an old injury. Anyway it’s getting really annoying being left unfinished and he’s getting really annoyed because it’s preventing him from making me orgasm.

Do any of you have any tips on how to prevent his wrist from locking so quickly or how to make me orgasm faster?