Lovers-I recall their taste/touch/smell-not how they look. textures.
I's suggest you are seeing a weird effect here. Both ENXPs say they feel like they can tap into Se very strongly at times. Yet it's the 8th function-huh? I think if you push Ne hard enough-it wants to become "one" with the moment. It becomes "real time" in it's intensity. Jung mentioned something to this effect. I bet it differs between NeTi and NeFi though.
Combined with Fi-that may be the textural/physical component. If Fi is meant to mirror the emotive states of others for our internal cross comparison via FiSi and allow us to analyze them-well maybe it can do that with very complex patterns as well. People are the most complex pattern there is. When I watch people, and allow my mind to open-ie not think-I am overwhelmed with intense input-just like when I watch the ocean.
Cant speak to ISFP though. I only know one ISFP girl and she likes to party a lot but can very sweet. At work she is very sparkly and cute, has been known to dance in five inch heels at bars, but she likes to go deer hunting, and has pics of herself with her first kill on her desk. I dunno..