How do you think is it wrong or no?
Yesterday my 13 years old son played horsie with his 5 years old sister, my daughter, i was in quite playfull mood, so when she got up of him i asked him if he can carry me, he said ''okay'', so i rode on him for about 2-3 mins, then i felt like it became harder for him, so i got up. I can swear you, it was just fun for everyone, and he looked so proud of himself he can carry me, i'm not big girl, just 115 pounds,though. But then i saw so much people who think that fun like this is wrong...