Ultimate shoulder rides

My coworker and friend Xiaocai, he has curly black hair and round little eyes, he is about 170cm, average built, he has a tic is to push his head forward repeatedly sometimes (like in egyptian dance), he doesn't realise that. Last week we need to rearrange the restaurant tables, and paintings and stuff that is hung high there, on a tuesday evening, when there is no one left, he and i went to the big room and started to do this (its about 11pm), i was standing on the tables, and trying hard to reach a painting, but i am a short girl (165cm), and i was thinking maybe i can ask him if i can ride him, and i look down, there he is smiling at me, and he lowered his head and pad the back of his neck and motioned me sit on his shoulders, i was suddenly ashamed, i was blashing, i think boys talk and he understood that i enjoy shoulder riding and headscissor games, he must know, that idea shamed me so much that i told him i can handle everything, so i did everything without his help.

The next evening, after work, we were tired, this guy coworker was resting his head on his girlfriends laps, he lie there very comforbly, that made me very jealous, and then Xiaocai come to me started to chat silly things, and he was pushing his head forward and back and forward repeately, so i told him that makes him look silly, he should cure that tic, he said he doesn't know how, i told him that because he doesn't workout his neck, maybe if i sit on his shoulders and make him do squat everyday for sometime, his tic would be cured, he said that sounds like a funtastic idea, he seemed really excited, he said to me that i must promise him to help him everyday to do his neck workout, he was much more enthusiathtic than i expected, anyway i said yes, and we started to do this, we went to his room, because now in Beijing it's still very cold, its minus, outdoor workout would be uncomfortble, so we went to his room and find there are no other guys there, he took off his shirt and went shirtless and squat on the floor again motioned me to ride on his neck, so i went there an sit on it, and squeezed little hard because i don't know if he is strong enough or experienced enough to lift me, but he did, he was quiet strong actaully, he started to laugh and started to chat, he never mentioned if he knows i like shoulder riding or not. I told him that he must do squat, he tried to do it with me but it was quiet hard for him, he did 4 then he was going to clapse, he than sat on the bed with me still on his shoulders, i told him to lie to the side and i started to scissor his neck and told him that scissoring might help to release tense from his neck muscles, he said he thinks so too, just told me to not scissor too hard, so we played like this for about 30 minutes, his neck was red from riding and scissoring, we heard people coming back, then i released his head, and we pretend we didn't do anything and i left. Since then we didn't do shoulder riding or scissoring practice again, i wonder if he deciced he doesn't like to be shouldr ridden or scissored, shall i ask him aobut that?