intact I’ve had similar comments from two girlfriends. Vaginal lubrication can be quite variable (time of the month, mood, foreplay, etc).
Occasionally the entrance has been a bit dry but if I entered them with my foreskin covering me head, they very quickly lubed up so we didn’t need to bother with artificial lube. The two who made specific comments to me both said that with their previous circumcised partner that even with lube they soon dried out and just waited for it to be over which, luckily for them, was never that long anyway.