help me again please :D

there was a yaoi.. on a chapter the seme was kinda frustrated coz his uke seemed had someone else to rely on(?) and for his frustration relieve he was playing with his young sister(?) hair.. he braided it and spray the hairspray and turned the young lady's straight hair into wavy.. :D

i really want to read it again but i cant remember what is this manga's name..
help me..

thanks in advance :*