"Captain! Theres no time to gawk!

Erin charges into Kieran, knocking him back onto the Lady's Gambit.

Spoiler
Show
Bull Rushing Kieran back onto the ship, instead of on the gangplank. Assuming Kieran doesn't resist (or loses the Str check) Erin moves Kieran back onto the ship (H28). If he wins by 5 or more, Erin also moves onto the ship (H28, putting Kieran at I29). If Erin loses the Str check, Erin is at G27.

Erin provokes an Attack of Opportunity from the sailor at I26 and Kieran.

Full Round: Charge (Bull Rush)
(1d20+5)[13]