You catch Erica in the living room and explain about her mother, repeating what she told you to say.
Erica says: "Sure, why don't you get your swimsuit on and let my mom get to know you better? I'm sure she'd enjoy that!"
You feel very controlled, but you agree. So you go to your bedroom and put on your swimsuit. It's difficult to put on your tight Speedo swimsuit over your hard-on, but eventually you manage it.