Gintoki is participating in the My Wife World Tournament so he can cure Shinpachi of his addiction to the romance simulation game Love Choris.  The tournament involves in-game dates with the heroines.  In the Momo group, Shinpachi uses a passive approach to dominate the other players!
I mean, please let me have some.
Quiero decir, por favor déjeme beber un poco.
Digo, por favor, deixe-me 
beber um pouco.