I'm not entirely sure this counts just as a handjob, it is a massage after all, but it certainly contains some nice lubed up movement around the 6min mark and a decent finish.
Also around 7.30 is a highlight too - she rubs his cock between her pussy.
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I've seen a few from the Massage Rooms with nice foreskin fun that may be worth checking out. There seems to be a lot more porn around that is a bit more 'sensual' or slower and I think this makes for really great foreskin play as you can appreciate the movement of the skin a bit better.
Also noticed there is a hell of a lot more Eastern Euro porn which apart from foreskin has the added bonus of the actors shutting the hell up with shitty porn dialogue!