Craig wrote the poem for his former press secretary.

Another love poem written by Colin Craig to his former press secretary Rachel MacGregor has been read out in court.

"You are beautiful because your eyes are lovely," is the opening line of the poem, titled Beautiful.

"You are beautiful because you look unbelievably good in your new dress," it continues.

SUPPLIED Former Conservative Party press secretary Rachel MacGregor.

"You are beautiful because your lips are so amazing to kiss,

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"You are beautiful because you are fearfully and wonderfully made,

"You are beautiful because your skin is so soft,

"You are beautiful because you have the most perfect... (LOL .. OK I deleted a couple of lines and stopped this section),

"Please know you are beautiful," it finishes.

It was one of two poems included in a letter Craig wrote to MacGregor on Christmas Eve in 2014. He accepted it was inappropriate.

The former Conservative Party leader and Whaleoil blogger Cameron Slater are suing each other for defamation at the Auckland High Court.

In a series of articles on his blog, Slater alleged Craig had sexually harassed MacGregor, which Craig denies.

Cross-examining Craig on Wednesday, Slater's lawyer Brian Henry asked whether the final line of the poem could be read by MacGregor as a reference to a comment he made about her breasts on election night in 2011.

Craig said he could not rule out making a comment about her breasts, or MacGregor interpreting the poem's final line as a reference to that comment.

In the letter containing the poem, Craig also drew on his and MacGregor's mutual Christian beliefs, saying: "The one thing that I will say from my time down here is that I have the following instruction [from God]: look after Rachel, you will need her more than you know."

He signed the letter off with a prayer: "Father I am so grateful for Rachel [MacGregor], she is so amazingly suited to helping me. I want to feel even if it hurts. I want to live the utmost. I want to live life in full colour and with compassion and love."

Another poem of Craig's, Two of Me, was published on the Whaleoil blog in 2015. It was also read out in court during Taxpayers' Union founder Jordan Williams' successful defamation proceedings against Craig late last year.