sex is fun but it isn't sacred which is part of why we even fight for bodily autonomy and privacy in the bedroom. one night stands and quickies and casual sex are all morally neutral. to mythologize sex as the ultimate intimacy through which people eternally connect is ridiculous and serves only to empower the christofascist regime which uses sex and intimacy as simultaneous weapons of oppression and beneficiary incentives for everyone to stay in line with the status quo.
sex is fun and it feels good and there is nothing wrong with having sex. at the same time sex is nothing particularly special or great either. It's just another thing humans are capable of. we give the concept of sex too much power tbqh.