Want to sit on boyfriends lap but not lead to anything further? How do I initiate it?

Basically i would like to either sit on his lap, not facing him, or lay down in between his legs and cuddle, but i don’t want him too seem as if we’re going further than that and whilst he woudlnt act on it, also how do i sit on his lap withou fit being odd , most of the time we are laying down/ sitting on a sofa/bed next to each other. i read and apparently it’s common for guys too get excited with this so what do i do if he does?

Want to sit on boyfriends lap but not lead to anything further? How do I initiate it?
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