My girlfriend only wears her short dress for certain occasions, but my occasion is to fuck her on all fours. And I think her dress is perfect for that. I just have to pull it up and pull something else down, and then I can fuck her on all fours. She doesn't know anything yet, but she said once that surprises keep a relationship fresh. And I think she'll definitely enjoy a spontaneous couple fuck on all fours. I just wait until she comes to me in the kitchen. I hope it won't take long.