I have no idea what the one last balloon means. Literally, with no regard to fitting it into English grammar, it's "[afterwards] [upper left] [command to stop]" I figure this is some sort of game mechanic thing, but I don't know.
Should the fourth_wall tag be added, given that bit of dialogue from Tenshi in the second panel?
That's right! I've prepared for this occasion!Onanist in heaven...Either way, I have to deal with you, huh.Onanist in Heaven
Hinanawi TenshiAnd top left, stop that!
Referring to her label in this panel.Huhh... I lost...Three hours later...Sex is communication. Heart is more important than technique!Now, come at me with all your magic (technique) in this Bhava-agra!
The Japanese phrase for Bhava-agra can mean "state of ecstasy".