Looking yaoi manga

I'm looking for yaoi or maybe bara manga. The thing i remember is a scene in whih the uke and the seme each is inside a robot or a machine. They engaged in a battle, and the uke's robot is f*ck*d by the seme's robot, while the uke himself is f*ck*ed by the plastic p*n*s of his robot as the seme's robot penetrates his robot.
I dont know if the manga is being uploaded here or on other site. Please tell me...