Twice & Red Velvet interactions, moments or simply just mentioning each other - ᴀ ᴛʜʀᴇᴀᴅ

Yeri & Dahyun [Kei, Arin, Yuqi & Umji] performing SNSD's Kissing You at KBS Song Festival 2018

Link to full video:

Joy & Tzuyu [Mijoo, Jiho, Yeonwoo, Sowon] performing Miss A's Hush at KBS Song Festival 2018

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Twice & Red Velvet [IOI, Gfriend] performing SNSD's Into The New World at KBS Song Festival 2016

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Yeri & Chaeyoung attended the NAVER x DISPATCH Girl Group Maknae's Christmas Party in 2018

Link to full video: https://www.vlive.tv/video/99896 

Yeri & Chaeyoung [Nancy] at the NAVER x DISPATCH Girl Group Christmas Party 2018 [1/2]

Yeri & Chaeyoung [Nancy] at the NAVER x DISPATCH Girl Group Christmas Party 2018 [2/2]

After their Christmas Party, Yeri & Chaeyoung went out to dinner together and posted these pictures on their Instagram accounts

Red Velvet & Twice performed S.E.S Dreams Come True at SBS Gayo Daejeon Music Festival 2018

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Irene & Yeri attended Twice's concert

Yeri attended another Twice concert

Nayeon & Momo attended Red Velvet's concert

Irene & Dahyun + Joy & Sana

Nayeon & Yeri have couple rings

When Key was backstage at Red Velvet's concert and he was teasing Yeri by saying "Next, we'll see you at BlackPink's concert. Let's all meet at Twice's concert!"

Sana greeting Joy

Twice & Red Velvet talking at ISAC. Sana & Joy linking arms.

Sana side hugging Joy during ISAC

Yeri facetiming Nayeon.

Yeri was asked who her favorite unnies are and she said
1- Taeyeon
2- Yoona
3- Nayeon
4- Irene
5- Wendy
6- Seulgi

Seulgi & Mina [Mijoo, Euijin, Yooa, Eunjin] [The FIVE Ws] had a special stage 'Ultra Dance Festival' in Inkigayo, in 2016

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Seulgi & Momo [Chungha, Youjung, SinB] performed Be Mine at KBS Song Festival 2016

Link to full video:

Mina & Seulgi with the rest of FIVE Ws [1/2]

Mina & Seulgi with the rest of FIVE Ws [2/2]

In Twice's The Best Thing I Ever Did music video, Nayeon, Dahyun & Tzuyu are seen dancing to Red Velvet's Power Up

Short compilation of Twice singing and dancing to Red Velvet's Red Flavor

During The Fact Music Awards

- Irene, Wendy & Joy talking to Sana.
- Joy stroking Sana's hair.
- Yeri walked to Nayeon and posed with her then hugged her.
- Seulgi held Mina's arm and was talking to Momo

Yeri and Nayeon at The Fact Music Awards

Nayeon and Yeri at Music Bank

Yeri posted her and Nayeon's private messages on Red Velvet's insta story. Nayeon asked Yeri what kind of pen she uses then she made a Black Panther pun [Black PENther]

During Nayeon's birthday Vlive in 2017, Yeri called her to wish her a happy birthday

This gif of Nayeon & Irene [Lisa] dancing

Sana & Jihyo dancing to Zimzalabim

Jeongyeon & Seulgi doing the ostrich walk

Yeri and Nayeon backstage when Yerin was filming

Irene, Seulgi & Yeri dancing to Likey with Nayeon during ISAC

Link to full video:

Twice & Red Velvet stealing each others phones during ISAC 2018 [1/2]

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Twice & Red Velvet stealing each others phones during ISAC 2018 [2/2]

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Twice singing Rookie while Red Velvet were coming in & Red Velvet singing Knock Knock while Twice were leaving

Seulgi & Yeri dancing to Fancy

Twice & Red Velvet had a flight together to go to Vietnam for AAA's

Twice & Red Velvet coming down the escalator together after their flight

Seulgi picked Momo as one of the people she thinks is the next generation girl group dance kings on Weekly Idol.

Yeri liked Nayeon's Instagram posted and commented "Wow unnie LOL really show me this hairstyle in person"

If I didn't include something, please feel free to DM me what I missed [with pics or vids], so I can add it to this thread!

Please quote instead of replying so it doesn't ruin the flow of the thread!

Credit to everyone who owns all these pictures & videos!