Forfar Farmington and Dundee United met in a five-goal thriller on Sunday at Station Park with the visitors taking all three points in the SWFL1 North.
The visitors took the lead after nine minutes, Mearns forcing her way through the defence before burying home past McKay.
Nicola Davidson, in the squad for some much-needed match fitness ahead of the Premier League starting next week, almost netted an instant equaliser but she could only watch her long range strike fly over the bar.
Kilcoyne saw her effort eight minutes later pushed wide by Becky Cameron with the resultant corner being cleared as far as Davidson, her volley missing the target.
Zoe Moreland had a chance saved before Davidson nodded home on the half hour mark, her celebrations cut short for a shove in the build up.
Eight minutes in to the second half Kilcoyne did well to set up Shillitto however the attacker couldn’t create enough space and her shot was blocked.
Shillitto did go one better in the 57th minute when she pounced on a loose ball after Kilcoyne’s shot was spilled and gleefully bundled the ball in to the empty goal.
Kilcoyne sent a shot inches over on the hour mark but following the goal kick United were back in front.
Gollan was sent clear by McFadyen despite strong offside shouts from Farmington and the former Forfar striker fired low under McKay.
Farmington looked to level once more but were dealt a blow in the 68th minute, Mearns nodding her second from a McCafferty cross.
Both sides were denied time and time again until the 87th minute when Forfar earned a corner.
From the set piece the ball was headed back out to Kilcoyne and she made her way in to the box before being taken out by Mearns for a penalty, with the United player earning a booking for her troubles.
Kilcoyne dusted herself off to fire the spot kick high beyond Cameron to create a nervy final few minutes.
Forfar were throwing everything they had at United and came close through Kilcoyne once again, her shot in injury time flying wide.