That scene with Pixie and X23 just bothers me, because it shows that Fraction paid zero attention to anything that happened in the previous run on New X-Men. Given some of the crazy shit that Megan's been through, I highly doubt that some blood on a towel would shock her, especially when it comes to someone like Laura, whom she knows isn't exactly a normal kid, even by mutant standards.
Still, plot-device-orama. Hopefully Immonen can do something interesting with Pixie other than make her a Dazzler groupie and rock the porn-face every so often.