What does the phrasal verb 'come over' mean?

[Oveyl]

English Language Tests, Intermediate level

ESL/EFL Test #139 "Idioms with the phrasal verb come", question 10

My boyfriend wants to ......... when nobody is at home, and I'm scared it might well lead to something else!

(a) come along
(b) come back
(c) come out
(d) come over

English Language Tests, Intermediate level

ESL/EFL Test #139 "Idioms with the phrasal verb come", answer 10

My boyfriend wants to come over when nobody is at home, and I'm scared it might well lead to something else!

Correct answer: (d) come over
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how this phrasal verb
translated

[Mister Micawber]

.
Come over = to visit informally: 'Our neighbors came over last night and we had a good chat'.
.
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Native English teacher at Mister Micawber's

[Zhangbaixiang]

What does the second part of this sentence mean?

Thanks.
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I have a dream and I want to know the secret of time and universe.

[Mister Micawber]

Which sentence, mine or the original test sentence?
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Native English teacher at Mister Micawber's

[Zhangbaixiang]

I mean the original one, "I'm scared it might well lead to something else!"? It might lead to what?

Thanks.
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I have a dream and I want to know the secret of time and universe.

[Mister Micawber]

We don't know for sure, but here it may mean necking or fornication.
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Native English teacher at Mister Micawber's

[Zhangbaixiang]

I see, Sorry for asking, but anyway, I have learnt two new words, necking and fornication.

Thanks.
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I have a dream and I want to know the secret of time and universe.