Hannah Jeter is insanely attractive ... now that we've gotten that out of the way we can get to something equally as sexy, her telling TMZ Sports which female athlete she has the girl hots for.

We got the pregnant Mrs. Jeter (way to go, Derek) out in NY and asked her who her girl crush is ... you know, seeing as how she's around incredibly beautiful women all day.

If you thought she was gonna take one of her S.I. models you're WRONG ... Hannah's girl crush is the same as her husband ... a world-class athlete.

Thank you Hannah, thank you.