AITA for feeling disrespected when my fiancée tells me she'd like to sleep with singers

posting here because the post was removed from the other sub.

My (29M) fiancée (29F) is a huge fan of two male singers, which is completely fine with me. Everyone has celebrity crushes. The problem is that she constantly talks about them in a sexual way in front of me.
Almost every week she’ll post stories about them and make comments about how she’d happily sleep with them if she had the chance (i hear this literally every week). At first I laughed it off but it keeps happening over and over again.
I’ve tried to be open-minded because they’re celebrities and obviously not people she’s actually involved with. But after months of hearing it, I can’t help feeling disrespected. If I regularly talked about female celebrities the same way and joked about wanting to sleep with them, I don’t think she’d appreciate it either, because simply i respect my partner.

When I’ve mentioned that it bothers me, she says I’m being insecure.

AITA for feeling hurt and disrespected by this?