User blog comment:AraEllesar/Mahjarrat Siblings/@comment-21231810-20120928220757

Lucien and Zemouregal are cousins.

Sliske and Wahisietel are brothers.

So yeah, it's totally possible and legit.

As for the brotherly love/sibling love. I assume it's entirely possible... Also since Viv's Divisional Split Theory's in place, essentially D2 Mahjarrat are capable of showing more emotions; so it's fine. :)