When Rukia encounters Ichigo and the others, Grimmjow taunts her and Ichigo and alludes to ‘penetration’ and gets Ichigo riled up with innuendos like “Jealous that I penetrated your girlfriend first?”
And before Ichigo can answer Rukia cuts in,
“I was the one who penetrated him first… More than once!”
And then everyone is just quiet while Ichigo is dying of embarrassment and Grimmjow shuts up because he’s just like ‘wow they’re into some really kinky shit…’
Rukia: I penetrated him first to give him my power. He hasn’t had to penetrate me to give me his yet, but I’m sure we’ve influenced each other mixing our powers–why am I even explaining this to you?
Grimmjow: Yeah, why are you giving me details or your kinky fuckplay–
Rukia: Ichigo there is no need to be upset. I am sure if there comes a time for you to penetrate me with your sword to insert your powers into me–
Urahara: Is that what you kids call it nowadays? ‘Inserting power’ into one another?
Ichigo: STOP TALKING.
Ichigo: ALL OF YOU.
Ichigo: EVEN YOU CHAD. ESPECIALLY YOU.