A female Shepard can romance bisexual Yeoman Kelly Chambers, but doing so does not yield a Paramour achievement or an implied sex scene the way that romancing ‘official’ interests does. Similarly, the player can attempt to romance the Asari Samara or her Ardat-Yakshi daughter Morinth, but the former will refuse and sex with the latter will kill Shepard.
2015 November 15, Meghan Blythe Adams, “Renegade Sex: Compulsory Sexuality and Charmed Magic Circles in the Mass Effect series”, in Loading… The Journal of the Canadian Game Studies Association, volume 9, number 14, archived from the original on 05 May 2018, page 47