It doesn't matter what kind of genitals she has. If she says she's a woman, she's a woman. We shouldn't play into the transphobia and ridicule female-presenting people who do have penises.
Lmao I was at this chalk art thing at my school (I was drawing Gaga) and this guy walked up to me and said "LADY GAGA? You *know* she's a dude right?" I was holding back so much because every revealing outfit of hers (especially her 52nd Grammys outfit) had suddenly come into my mind and her photoshoots of her basically nude...so I just smirked, looked up at him and said "She's a *woman*...TRUST me."