Ian Somerhalder is a man in love.  

The "Vampire Diaries" actor posted another adorable picture of himself and girlfriend actress Nikki Reed on Instagram. In the picture, the couple of five months snuggle up to each other while taking a break from horseback riding.

"A beautiful perfect Georgia afternoon decompressing from work with our big boy Eagle (who opted out of this photo), our little girl Millie (who you all haven't seen yet but here she is) & the one and only @iamnikkireed photographed by my lovely sista Kat Graham aka @katgrahampics," Somerhalder wrote in the caption.

He continued, "The simple beauty of the quiet countryside loving on my kids with these amazing women...Wow, love this. Needed this. So many amazing things happening with all of the projects in my life-thank you for so much love and support. Thank you."

Somerhalder and Reed were first spotted together during the summer and have remained unseparable since. 

However, sources told HollywoodLIfe.com that the couple's relationship is causing trouble for Somerhalder's co-star Nina Dobrev. Producers are reportedly worried that Dobrev will leave the series at the end of season six.

"Ian and Nikki's relationship is causing a lot of drama, to the point where the producers have asked Ian not to bring Nikki to set when Nina is there because they are very worried about losing her," a source told the site. "They worry that the show would fall apart without her."