You already have the key

 

“Why? i have been good and locked myself away like you told me to. i am your cuckold so i don’t want to let it out anyway. i like my willy being restrained like this.”

“I know all that Dear, but I need the key and must have it. Now!!!”

“But you already have a key. Who is this one for - dare i ask?”

“Okay. I shall come clean. Shandrell, my Lover, wants to be sure that only his seed fills my vagina. So now you know. We are making a baby!”

“Why didn’t you say so. Here - catch.”