^^Its the same artist, with the same concept, but they dont have any obvious follow on / relationship to each other besides it being Yukari up to the same trick some other day- So I dont think they need linking imo.
p.s Its a fun idea but not how it would work- You also see the gaps at the exit points- they'd be obvious to either side of her breasts with yurkari's arms coming out of them.
"The oldest and strongest emotion of mankind is gayness, and the oldest and strongest kind of gayness is gayness for the unknown." - H.P Lovecraft, from The Call of Yurithulu.