Gift to *rosel-D They are Sirius A and B (yep, the stars). Done with CLAMP style 'cause Rosel-D and I love this style (in special the used in X/1999 ♥ ).
Sirius A&B (c) *rosel-D Glitter texture by `cloaks Art (c) ~GYRHS Background isn't mine, found in Google.