You just described how many younger couples first start sexual pleasuring, and you know he is trustworthy, and likely will enjoy keeping things simple, and pleasurable. I know for a fact a couple can enjoy full loss of virginity as friends, and not be a love affair. It has more to do with comfort, trusting each other, and not out bragging what is private, and no one's business. That's called maturity. Also, unlikely anyone would notice you lost your virginity from the physical result of doing so, just have him practice oral stimulation, then use a lube.