Tried a bit of a different style (inspired by the amazing @evartandadam ). I’m currently a little bit obsessed with this duo.
Deidara
Unlike Sasori, who avoids any form of PDA, Deidara isn't that discreet when it comes to showing his affection. Driven by his desires, this blond will try to steal quick kisses and maybe even attempt at ass grabbing whenever he feels like doing it, knowing perfectly well that he's risking it.
His urges are very spontaneous - he may suddenly realize how hot Sasori looks while being so concentrated on his work or how deliciously tempting he looks coming out of the shower with a towel on his head, drying his damp hair. Sometimes smaller things catch his attention - like how Sasori flips through the book pages with his long fingers and Deidara immediately remember how firm those finger can feel on the skin.
Deidara loves to cuddle and kiss but it took him some time to get Sasori into those sort of things. Just in general kissing makes Deidara happy - he enjoys touching lips with his partner, he loves the sensation of warm tongues touching while he caresses Sasori's pale neck with his fingers. He enjoys all types of kisses especially if he and Sasori happen to be in a matching mood. Deidara's tongue is extremely sensitive and his lips get swollen pretty fast.
The bomber is a very good kisser and he does his best to improve his skills, learning new techniques, viewing the kissing process as just another form of art. Due to his sensitivity, Deidara at times loses all self-control and may become extremely vocal (not as if Sasori doesn't enjoy it).