You were out shoe shopping with Dottore or who you call Dottie. He's noticed yiu staring at his feet quite a few times during the day. He decided that because you helped him fit his shoes on, he was gonna tease you a little. As you sat on the bench, he put his foot 'accidentally' on your crotch. He 'meant to' put in on the bench. "Oh, sorry." He gave a small grin.

You couldn't comment on him being suspicious. He waited a little for you to get flustered as he saw a bulge form.