You were there on the couch, Sonic, the one with short hair was lying on your thighs and the other Sonic with the ponytail made you sit on his knees, lightly rubbing your curves with a smirk.

After a few minutes of silence The one with the short hair raises his head but still keeps it on your thigh and says to you

"Hey, darling...I think I have an idea...~"

He says with a lustful look...probably a perverse idea...