I [24M] am meeting an online friend [23F] and don't know what to think

I (24M) met a girl (23F) online two years ago. I am British and she is Spanish. We met on a language learning exchange app. We talked a lot for a while, but due to distance we stopped . Occasionally, we start messaging again before it dries up again.

I moved to Madrid two years ago, while she lives in Barcelona. As we didn´t talk much, I forgot to tell her whenever I went to Barcelona (twice) and so we never met in person. I have sinced moved back to the UK.

For the past month or even two months, we have been talking nearly every day. Our chats have become a lot more personal and sometimes even sexual (talking about fetishes, likes and dislikes, sex lives etc) ---> literally three days ago our conversations changed.

She is currently on a trip in London and invited me to come over with her since she is alone. She has her flat and only one bed, obviously we would be sleeping together.

I recently have had bad news since my visa for coming back to Spain keeps getting delayed and have been stuck at home with parents for months, something that I don't want. I thought as friends that it would be good to spend time with her and finally meet her, especially that we are talking more. I also need a distraction and change of scenery.

I am a little hesistant thought since our conversations have become quite intimate and I don't know what to expect since she is essentially a stranger who I will be sharing a bed with and have shared intimate details with.

She has said that there will be no sex, but we still kept our conversations the same. She also mentioned stuff like the fact that her boobs keep falling out of her pyjamas and other flirty comments like asking if "she sucked me, what flavour would I be?" After I said I love chocolate.