Just like how Blackie can fight alongside me, since she's a special horse.

[He looks toward Horsea and then back toward Diarmuid.]

Hey, Horsea can be your horse! That way, we can match.

[Speaking of partners and all, Cu Chulainn decides that he should let Diarmuid have a turn playing with Horsea now. After all, Horsea is going to be his brother's partner and not his.]

Right, you should get in the tub now.