Ian Somerhalder and Nikki Reed packed on the passion as they got spotted kissing in a Comic-Con after-party, while Somerhalder's former girlfriend, Nina Dobrev was seen flirting with Orlando Bloom and Benjamin McKenzie.

Somerhalder and Reed have been photographed multiple times recently, sparking rumors that the two are dating.

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An insider told E! News that the "Vampire Diaries" actor and "Twilight Saga" actress "were hot and heavy" in a Comic-Con after-party thrown by Entertainment Weekly at Hard Rock Hotel's Float Bar. The two were said to have had no intentions of hiding their affection for each other.

Luckily, the couple didn't bump into Somerhalder's "Vampire Diaries" co-star and ex, Nina Dobrev at the party; although it seemed that she was busy focusing on other men anyway.

Dobrev was spotted flirting with "Lord of the Rings" star Orlando Bloom the night before at a Playboy and A&E Bates Motel event. Although the two weren't caught kissing, witnesses say there was obvious chemistry between them.

According to an insider, "Nobody had any idea they knew each other. They seemed connected like magnets. They were canoodling; he had his arm around her."

On the other hand, Dobrev was seen hanging out with a different actor in the Entertainment Weekly after-party. She was seen leaving on a cab with "Gotham" actor Benjamin McKenzie, who shot to stardom with the hit series "The O.C."

Although the actress has been seen with both men, she isn't officially with anyone at the moment. "Nina is loving [the] single life. She is definitely enjoying herself right now," a source shared.

Dobrev and Somerhalder were friends with Reed and her former husband, Paul McDonald. The former couples used to even go on double dates together.

Dobrev and Somerhalder split up in May 2013, while Reed filed for divorce on May 2014.

TagsComic Con romance, Ian Somerhalder, nikki reed, kissing, Nina Dobrev, Orlando Bloom, Ben McKenzie