Discolouration spots after receiving oral, is it cause for concern?

I recently received unprotected oral just once about 2 weeks ago. about 2-3 days after i noticed a couple of skin coloured spots on the head of my penis. not sure if its coincidence and maybe just an irritation or something to be concerned with. its been about 2 weeks so far, they havent changed much, theres no itching or burning and they dont appear to be raised, maybe just slightly but i cant feel to the touch. they are more evident in the shower when wet and the light hits them. note: the very clear dark dot, is a beauty mark, that's not the area of concern, hopefully the photos show it enough, i can take better ones maybe wet and with lighting if needed?

image

image