
it really depends. generally you shouldn’t but if it’s a hook up or a one time thing then whatever live your life. but if you’re regularly lying to your partner then that’s a problem, you’re betraying their trust in a way that shows you don’t trust them either to be able to do better, and you’re sacrificing your own happiness to do so
then you should just tell your partner that. sex isn’t a race to orgasm it’s an intimate activity between lovers. they should still know what you’re looking for in sex and yall should be working together so you both get what you need/want out of the relationship both in and out of the bedroom.