Sharon Carter and Scott Lang
Scott was a nerd. He was into all things nerdy. That included Pokemon. Though, to be fair, Pokemon wasn't high on the list of nerdy things he cared about. But when Sharon had informed him of the Pokemon portal, and expressed her desire to go, he readily agreed.
Though he wasn't certain she was really all that into Pokemon. He didn't care, though. It gave him an excuse to spend time with his girlfriend. Not that he particularly needed an excuse...
"It doesn't need to be romantic to be a nice date," he said. "And it should be fun."