If you get quality orgasms, you will need less frequent intercourse. You will be fully satiated with quality expanded orgasm.
Google breath to orgasm. you will find website related to expanding orgasm. Quality of orgasm will be superior. One of the method is to breath simulatneoudly, alernatively, and do circular breathing.There are other website as well
If your sexual arousal is not intrusive, is not interfering negatively with your way of life, then it is normal. If however it is intrusive and upsetting then it may be a condition called Persistent Genital Arousal Disorder or PGAD