Blake Fielder-Civil plans to join Amy Winehouse in the Caribbean but with the mother of his new child.

The ‘Rehab’ singer is presently recording a new album.

According to sources, Fielder-Civil’s plans of “threesome” will be a nasty surprise for troubled Amy, who still calls him “soulmate”.

Fielder-Civil revealed his intention with a posted message for Gilleen Morris, the mother of his four-month-old son.

“Are yo comin to St Lucia or not. Need to book flights,” the Daily Star quoted him as stating on the mail.

He added: “Who you bringing.. any sexy friends, as good lookin as you.. needs to look good for the photies!! Xx.”

Also, a source said: “Amy was absolutely desperate to have Blake join her in the Caribbean. The only problem is, he’s planning on bringing another girl.”

Another insider added: “Amy is still head over heels in love with Blake and she hopes to convince him to go too.

“She’s lonely without him and wants some sunshine and fun.”

Meanwhile, Winehouse’s pals have criticized Fielder-Civil for being insensitive.

One said: “He is absolutely shameless. Only he would concoct a plan to go on holiday with Amy and take another woman along in tow. He’s the lowest of the low.”